Lovejoy 68514417142 Dd-type Double Universal Joint

Product Description

The LOVEJOY 68514417142 is a DD-type double universal joint designed for mechanical power transmission applications requiring angular misalignment compensation between rotating shafts. It features a 1-3/16 inch bore depth, an overall length (OAL) of 8-1/2 inches, and a rated torque capacity of 7,920 inch-pounds. The double-joint configuration allows for greater angular deflection than a single universal joint while maintaining more consistent velocity transfer. This part is typically installed by millwrights, maintenance technicians, and mechanical contractors working on industrial drive systems, conveyor lines, or similar rotating equipment where shaft misalignment is a design factor.

This double universal joint suits industrial and commercial mechanical drive applications where two shafts must transmit torque across an angular offset. The 3/4 inch inside diameter and 1-1/2 inch outside diameter yoke dimensions are suited for mid-range drive shafts in production machinery, material handling equipment, and similar power transmission setups. The 7,920 in/lb torque rating positions this joint for moderate-duty continuous-rotation applications. Installation is performed by qualified mechanical or maintenance trades familiar with drive train components and coupling alignment procedures.

Key Features

• DD-type double universal joint design allows angular misalignment compensation across two pivot points
• 7,920 in/lb torque rating supports moderate-duty power transmission loads
• 1-3/16 inch bore depth accommodates standard shaft sizing in industrial drive applications
• 3/4 inch inside diameter by 1-1/2 inch outside diameter yoke interface for positive shaft engagement
• 8-1/2 inch overall length provides adequate span for typical shaft-to-shaft installation clearances

Compatibility

Designed as an OEM-style replacement or direct-fit component for industrial mechanical drive assemblies using DD-type double universal joints with matching bore, yoke diameter, and torque specifications.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out all power sources before removing or installing any rotating drive components in accordance with OSHA lockout/tagout procedures. Verify shaft diameter, bore depth, and yoke dimensions against the drive system specifications before installation. Do not exceed the rated torque of 7,920 in/lb during operation.